Cooktop



FIG. 1 is a front perspective view of the cooktop of the present invention;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left elevational view thereof; and,

FIG. 6 is a right elevational view thereof. 

The ornamental design for a cooktop, as shown and described. 